Home / 661,723,679.40-992,585,519.10-170,435,999.40

Finding the Fourth Proportional to 661,723,679.40, 992,585,519.10 and 170,435,999.40

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Solution

The fourth proportional to 661,723,679.40, 992,585,519.10 and 170,435,999.40 is: 255,653,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,723,679.40 : 992,585,519.10 = 170,435,999.40 : x
  2. Step 2: Convert to fraction form
    661,723,679.40/992,585,519.10 = 170,435,999.40/x
  3. Step 3: Cross multiply
    661,723,679.40x = 992,585,519.10 × 170,435,999.40
  4. Step 4: Simplify right side
    661,723,679.40x = 169,172,304,937,776,288
  5. Step 5: Solve for x
    x = 169,172,304,937,776,288/661,723,679.40
  6. Step 6: Final answer
    x = 255,653,999.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.